Electronic stabilizer

Details Electronic stabilizer Electronic stabilizer

2002-01-18

2003-06-24

Berhane, Adolf Deneke (Department: 2838)

Electric power conversion systems

Current conversion

Using semiconductor-type converter

C363S023000

Reexamination Certificate

active

06584000

ABSTRACT:

RELATED U.S. APPLICATIONS
Not applicable.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable.
REFERENCE TO MICROFICHE APPENDIX
Not applicable.
FIELD OF THE INVENTION
The present invention relates generally to an electronic device, and more particularly to an electronic stabilizer designed to provide a stable low voltage bias current sufficient to drive a lamp in an environment in which the condition of direct current low voltage or direct current high voltage exits.
BACKGROUND OF THE INVENTION
As shown in
FIG. 1
, an electronic stabilizer of the prior art comprises a variable frequency loop
11
, and an output transformer
301
which has a first coil
311
, a second coil
321
and a third coil
331
. The variable frequency loop
11
is formed of a bias resistor
271
, a first induction-resistant coil
211
, a second induction-resistant coil
221
, a first transistor
231
, a second transistor
241
, and a first capacitor
251
. A lamp
40
is serially connected with a starting capacitor
41
and is in a parallel connection with the third coil
331
of the output transformer
301
. As the current of a power source
10
passes the bias resistor
271
, an appropriate low voltage bias current is made available. In view of the fact that the lamp
40
demands a greater amount of low voltage bias current, the bias resistor
271
is often affected by the voltage difference to bring about a high temperature as well as a high consumption of power. For this reason, the electronic stabilizer of the prior art is not suitable for use in a high voltage power circuit.
BRIEF SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide an electronic stabilizer suitable for use in a high voltage power circuit and capable of ensuring the minimum temperature rise of the high voltage power circuit in its entirety.
In keeping with the principle of the present invention, the foregoing objective of the present invention is attained by an electronic stabilizer comprising an output transformer, a variable frequency/power amplifying loop, a low voltage variable frequency loop, and an element of a high resistance value. The primary side of the output transformer is connected with the variable frequency/power amplifying loop. The secondary side of the output transformer is connected with a low voltage variable frequency rectifying loop and a voltage boosting and lamp lighting loop. A first node and a second node of the variable frequency/power amplifying loop and the low voltage variable frequency rectifying loop are respectively connected with an element of a high resistance value. The electronic stabilizer is suitable for use in an environment of direct current low voltage or direct current high voltage. The electronic stabilizer of the present invention is capable of providing a stable low voltage bias current which is sufficient to drive a lamp. In the meantime, the electronic stabilizer of the present invention endures the minimum temperature rise of the entire circuit.
The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.


REFERENCES:
patent: 4353116 (1982-10-01), Palmers et al.
patent: 6172883 (2001-01-01), Kates et al.
patent: 6266254 (2001-07-01), Ohtake

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